Calculator

TI-RADS Calculator.

The TI-RADS Calculator is a valuable tool for assessing thyroid nodules detected during ultrasound investigations. It is based on the ACR Thyroid Imaging Reporting and Data System (ACR TI-RADS), a standardized scoring system used to evaluate the risk of malignancy in thyroid lesions. This scoring system helps radiologists and clinicians decide whether fine needle aspiration (FNA) or follow-up procedures are required.

TI-RADS Calculation Results

Total Score: -

TI-RADS Category: -

Risk of Malignancy: -

How to Use the TI-RADS Calculator?

Using the TI-RADS calculator is straightforward and requires ultrasound measurements of the following parameters:

  • Composition
    • Cystic or completely cystic/Spongiform : 0 points
    • Mixed cystic and solid: 1 point
    • Solid or almost completely solid: 2 points
  • Echogenicity
    • Anechoic: 0 points
    • Hyper- or isoechoic: 1 point
    • Hypoechoic: 2 points
    • Very hypoechoic: 3 points
  • Shape(use the transverse plane)
    • Wider than tall: 0 points
    • Taller than wide: 3 points
  • Echogenic foci
    • None/Large comet-tail artifact: 0 points
    • Macrocalcifications: 1 point
    • Peripheral/rim calcifications: 2 points
    • Punctate echogenic foci: 3 points
  • 2 points - TI-RADS category 2
    • Not suspicious
    • No fine needle aspiration (FNA) required
  • 3 points - TI-RADS category 3
    • Mildly suspicious
    • ≥1.5 cm follow up, ≥2.5 cm FNA - follow up: 1, 3 and 5 years
  • 4-6 points - TI-RADS category 4
    • Moderately suspicious
    • ≥1.0 cm follow up, ≥1.5 cm FNA - follow up: 1, 2, 3 and 5 years
  • ≥7 points - TI-RADS category 5
    • Highly suspicious
    • ≥0.5 cm follow up, ≥1.0 cm FNA - annual follow up for up to 5 years

⚕️ An example of the TIRADS assessment of a spongiform thyroid nodule:

  • Composition (spongiform) - 0 point
  • Echogenicity (anechoic) - 0 point
  • Shape (wider than taller) - 0 point
  • Margin (lobulated) - 1 point
  • Echogenic foci (present: macrocalcification, peripheral calcification, puncate foci)- 6 points
    Total: 7 points, TI-RADS category 5, 35% risk of malignancy.

Steps:

  • Enter the findings from the ultrasound for each parameter into the calculator.
  • The calculator will compute the total score.
  • Review the results, which include the total score, TI-RADS category, and risk of malignancy.

Healthy and Unhealthy Ranges

The TI-RADS categories classify the nodules into risk groups:

  • TI-RADS Category 1: Benign (0% risk of malignancy)
  • TI-RADS Category 2: Not suspicious (0.3% risk of malignancy)
  • TI-RADS Category 3: Mildly suspicious (1.5% risk of malignancy)
  • TI-RADS Category 4: Moderately suspicious (4.8% risk of malignancy)
  • TI-RADS Category 5: Highly suspicious (35% risk of malignancy)

This categorization aids in determining appropriate follow-up and treatment plans based on malignancy risk.

How to use the ACR TIRADS calculator?

Our thyroid nodule calculator doesn't require much effort - choose the options that best describe the picture from the ultrasound device.

Your results will be shown underneath the calculator. You'll receive:

  • Collected number of points (0-17)
  • TIRADS category (TR1-5)
  • Risk of malignancy for the given category
    • TR1: 0.3%
    • TR2: 1.5%
    • TR3: 4.8%
    • TR4: 9.1%
    • TR5: 35%
  • ACT recommendations (fine needle aspiration + follow-up)

Why Use This Calculator?

  • Accuracy: Provides a precise and standardized risk assessment.
  • Efficiency: Simplifies decision-making for FNA or monitoring.
  • Reliability: Based on established ACR TI-RADS guidelines.

The calculator is an essential tool for radiologists, endocrinologists, and clinicians, ensuring consistency and clarity in managing thyroid nodules.